Comparable stake leader
Steven A. Ballmer
SEC ownership of Stagwell Inc
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000876883.
Disclosed value leader
Steven A. Ballmer
Comparable rows
50/50
Latest evidence
13 May 2026
- Public ticker
- STGW on Nasdaq
- Parsed ownership sources
- 3/4/5, 13D/G, and 13F
- Largest SEC-reported holder
- Steven A. Ballmer
- Latest 13D/G holder
- Steven A. Ballmer
- Latest parsed ownership date
- 13 May 2026
- Issuer CIK
- 0000876883
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Stagwell Inc (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Steven A. Ballmer
Disclosed value leader
Steven A. Ballmer
Comparable rows
50/50
Latest evidence
13 May 2026
3/4/5
13D/G
13F
Lead comparable stake: 44%
13D/G row: Steven A. Ballmer
Showing 1-8 of 50 holder rows.
Quick read
Steven A. Ballmer leads the comparable SEC ownership view at 44%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Steven A. Ballmer's linked filing trail.
Comparable ownership
Top 5
Steven A. Ballmer
44%
HOTCHKIS & WILEY CAPITAL MANAGEME...
8.1%
GOLDMAN SACHS GROUP INC
4.9%
BlackRock, Inc.
2.9%
Stagwell Group LLC
0.8%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Steven A. Ballmer |
3/4/5
13D/G
10%+ Owner
|
44%
from 13D/G
|
$702,070,029
116,044,633 shares
|
— | 04 Apr 2025 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Hotchkis and Wiley Capital Management, LLC
|
8.1%
from 13D/G
|
$145,035,179
23,058,057 shares
|
— | 31 Mar 2026 |
| GOLDMAN SACHS GROUP INC |
3/4/5
13D/G
13F
10%+ Owner · The Goldman Sachs Group, Inc. · Company
|
4.9%
from 13D/G
|
$82,299,679
12,981,022 shares
|
— | 13 Jun 2024 |
| BlackRock, Inc. |
13F
13D/G
Company
|
2.9%
from 13D/G
|
$49,204,820
7,822,706 shares
|
— | 31 Mar 2026 |
| Stagwell Group LLC |
13D/G
|
0.8%
|
—
|
-$152,192,211 | 15 Dec 2025 |
| Polpat LLC |
3/4/5
10%+ Owner
|
45%
|
$698,588,690
116,044,633 shares
|
— | 04 Apr 2025 |
| Mark Jeffery Penn |
3/4/5
Chief Executive Officer, Director, 10%+ Owner
|
9.7%
|
$148,025,741
25,034,990 shares
|
+$117,600 | 13 May 2026 |
| Eli Samaha |
3/4/5
Director
|
3.2%
|
$39,899,587
8,159,425 shares
|
— | 01 Apr 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$12,956,019.
Buys
$117,600
Insiders: 1
Sells
$13,073,619
Insiders: 1
Net
-$12,956,019
Shares: -2,143,790
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 20,000
Shares: 2,163,790
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 20,000 | 2,163,790 | $117,600 | $13,073,619 | -$12,956,019 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 20 reporting-owner rows connected to Stagwell Inc. Open a relationship link for the CIK-to-CIK filing trail.
Rows
20
Largest Forms 3/4/5 holder
Steven A. Ballmer
Net 12M change
-$12,956,019
Latest report
13 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Steven A. Ballmer | 10%+ Owner | $702,070,029 | Mixed | 04 Apr 2025 | ||
| Polpat LLC | 10%+ Owner | $698,588,690 | Mixed | 04 Apr 2025 | ||
| Mark Jeffery Penn | Chief Executive Officer, Director, 10%+ Owner | $148,025,741 | +$117,600 | +0.08% | Mixed | 13 May 2026 |
| GOLDMAN SACHS GROUP INC | 10%+ Owner | $82,299,679 | Filing P/S | 13 Jun 2024 | ||
| Eli Samaha | Director | $39,899,587 | Mixed | 01 Apr 2026 | ||
| Jay Leveton | President | $9,826,230 | Mixed | 01 Apr 2026 | ||
| Ryan Greene | Chief Financial Officer | $6,803,354 | Mixed | 01 Apr 2026 | ||
| Frank P. Lanuto | EVP, Finance | $2,708,947 | Mixed | 01 Apr 2026 | ||
| Charlene Barshefsky | Director | $1,123,949 | Mixed | 12 Jun 2025 | ||
| Irwin D. Simon | Director | $1,074,907 | Mixed | 12 Jun 2025 | ||
| Desiree G. Rogers | Director | $1,002,313 | Mixed | 12 Jun 2025 | ||
| Vincenzo DiMaggio | SVP, Chief Accounting Officer | $984,054 | Mixed | 31 Mar 2025 | ||
| Brandt A. Vaughan | Director | $954,425 | Mixed | 01 Apr 2026 | ||
| Wade Oosterman | Director | $944,642 | Mixed | 12 Jun 2025 | ||
| Rodney E. Slater | Director | $614,446 | Mixed | 12 Jun 2025 | ||
| Peter McElligott | General Counsel | $597,484 | Mixed | 01 Apr 2026 | ||
| Bradley J. Gross | Director | $53,103 | -$13,073,619 | -100% | Filing P/S | 04 May 2026 |
| Indaba Capital Management, L.P. | 10%+ Owner | Mixed | 24 May 2021 | |||
| Ga Secondary C.v. AlpInvest | Former 10% holder | Mixed | 09 May 2023 | |||
| AlpInvest Partners B.V. | Former 10% holder | Mixed | 09 May 2023 |
Recent insider transactions for Stagwell Inc
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Mark Jeffery Penn | STGW | Class A Common Stock | Purchase | 0.09% | $117,600 | $5.88 | 20,000 | 23,034,990 | 13 May 2026 | Direct |
| Bradley J. Gross | STGW | Class A Common Stock | Sale | -99.6% | $13,073,619 | $6.04 | -2,163,790 | 8,789 | 04 May 2026 | See Footnotes |
| Peter McElligott | STGW | Class A Common Stock | Award | 42.4% | 36,390 | 122,185 | 01 Apr 2026 | Direct | ||
| Mark Jeffery Penn | STGW | Class A Common Stock | Award | 1.72% | 389,432 | 23,014,990 | 01 Apr 2026 | Direct | ||
| Jay Leveton | STGW | Class A Common Stock | Award | 5.07% | 97,040 | 2,009,454 | 01 Apr 2026 | Direct | ||
| Frank P. Lanuto | STGW | Class A Common Stock | Award | 15.5% | 74,189 | 553,977 | 01 Apr 2026 | Direct | ||
| Ryan Greene | STGW | Class A Common Stock | Award | 5.28% | 69,825 | 1,391,279 | 01 Apr 2026 | Direct | ||
| Brandt A. Vaughan | STGW | Class A Common Stock | Award | 1.45% | 2,782 | 195,179 | 01 Apr 2026 | Direct | ||
| Eli Samaha | STGW | Class A Common Stock | Award | 2.24% | 3,180 | 145,103 | 01 Apr 2026 | Direct | ||
| Ryan Greene | STGW | Class A Common Stock | Disposed to Issuer | -23.4% | -403,717 | 1,321,454 | 11 Mar 2026 | Direct | ||
| Mark Jeffery Penn | STGW | Class A Common Stock | Disposed to Issuer | -16.8% | -4,572,207 | 22,625,558 | 11 Mar 2026 | Direct | ||
| Jay Leveton | STGW | Class A Common Stock | Disposed to Issuer | -25.8% | -664,754 | 1,912,414 | 11 Mar 2026 | Direct | ||
| Frank P. Lanuto | STGW | Class A Common Stock | Disposed to Issuer | -7.79% | -40,534 | 479,788 | 11 Mar 2026 | Direct | ||
| Mark Jeffery Penn | STGW | Class A Common Stock | Tax liability | -0.28% | -75,447 | 27,197,765 | 07 Mar 2026 | Direct | ||
| Peter McElligott | STGW | Class A Common Stock | Tax liability | -9.03% | -8,512 | 85,795 | 07 Mar 2026 | Direct | ||
| Jay Leveton | STGW | Class A Common Stock | Tax liability | -1.69% | -44,230 | 2,577,168 | 07 Mar 2026 | Direct | ||
| Frank P. Lanuto | STGW | Class A Common Stock | Tax liability | -3.02% | -16,208 | 520,322 | 07 Mar 2026 | Direct | ||
| Ryan Greene | STGW | Class A Common Stock | Tax liability | -0.54% | -9,359 | 1,725,171 | 07 Mar 2026 | Direct | ||
| Mark Jeffery Penn | STGW | Class A Common Stock | Tax liability | -0.83% | -229,529 | 27,273,212 | 03 Mar 2026 | Direct | ||
| Mark Jeffery Penn | STGW | Class A Common Stock | Disposed to Issuer | -0.21% | -57,689 | 27,502,741 | 03 Mar 2026 | Direct | ||
| Peter McElligott | STGW | Class A Common Stock | Tax liability | -9.69% | -10,121 | 94,307 | 03 Mar 2026 | Direct | ||
| Peter McElligott | STGW | Class A Common Stock | Disposed to Issuer | -1.72% | -1,831 | 104,428 | 03 Mar 2026 | Direct | ||
| Jay Leveton | STGW | Class A Common Stock | Tax liability | -2.25% | -60,467 | 2,621,398 | 03 Mar 2026 | Direct | ||
| Jay Leveton | STGW | Class A Common Stock | Disposed to Issuer | -0.44% | -11,855 | 2,681,865 | 03 Mar 2026 | Direct | ||
| Frank P. Lanuto | STGW | Class A Common Stock | Tax liability | -7.82% | -45,534 | 536,530 | 03 Mar 2026 | Direct | ||
| Frank P. Lanuto | STGW | Class A Common Stock | Disposed to Issuer | -2.06% | -12,264 | 582,064 | 03 Mar 2026 | Direct | ||
| Ryan Greene | STGW | Class A Common Stock | Tax liability | -1.22% | -21,405 | 1,734,530 | 03 Mar 2026 | Direct | ||
| Ryan Greene | STGW | Class A Common Stock | Disposed to Issuer | -0.26% | -4,513 | 1,755,935 | 03 Mar 2026 | Direct | ||
| Brandt A. Vaughan | STGW | Class A Common Stock | Award | 1.9% | 3,579 | 192,397 | 02 Jan 2026 | Direct | ||
| Eli Samaha | STGW | Class A Common Stock | Award | 2.97% | 4,090 | 141,923 | 02 Jan 2026 | Direct | ||
| Bradley J. Gross | STGW | Class A Common Stock | Gift | -70% | -5,341,715 | 2,293,238 | 28 Nov 2025 | See Footnotes | ||
| Eli Samaha | STGW | Class A Common Stock | Award | 2.65% | 3,552 | 137,833 | 01 Oct 2025 | Direct | ||
| Brandt A. Vaughan | STGW | Class A Common Stock | Award | 1.67% | 3,108 | 188,818 | 01 Oct 2025 | Direct | ||
| Bradley J. Gross | STGW | Class A Common Stock | Gift | -41.1% | -5,341,715 | 7,655,879 | 04 Sep 2025 | See Footnotes | ||
| Mark Jeffery Penn | STGW | Class A Common Stock | Gift | -5.59% | -1,750,000 | 29,560,430 | 01 Aug 2025 | Direct | ||
| Eli Samaha | STGW | Class A Common Stock | Award | 3.42% | 4,444 | 134,281 | 01 Jul 2025 | Direct | ||
| Brandt A. Vaughan | STGW | Class A Common Stock | Award | 2.14% | 3,889 | 185,710 | 01 Jul 2025 | Direct | ||
| Desiree G. Rogers | STGW | Class A Common Stock | Award | 18.5% | 30,000 | 192,014 | 12 Jun 2025 | Direct | ||
| Eli Samaha | STGW | Class A Common Stock | Award | 30% | 30,000 | 129,837 | 12 Jun 2025 | Direct | ||
| Irwin D. Simon | STGW | Class A Common Stock | Award | 17% | 30,000 | 205,921 | 12 Jun 2025 | Direct | ||
| Rodney E. Slater | STGW | Class A Common Stock | Award | 34.2% | 30,000 | 117,710 | 12 Jun 2025 | Direct | ||
| Brandt A. Vaughan | STGW | Class A Common Stock | Award | 19.8% | 30,000 | 181,821 | 12 Jun 2025 | Direct | ||
| Charlene Barshefsky | STGW | Class A Common Stock | Award | 16.2% | 30,000 | 215,316 | 12 Jun 2025 | Direct | ||
| Wade Oosterman | STGW | Class A Common Stock | Award | 19.9% | 30,000 | 180,966 | 12 Jun 2025 | Direct |
* marks a reported price that did not pass the local price check.